Liquid Crystal Display and Backframe for Liquid Crystal Display

ABSTRACT

The present invention discloses a liquid crystal display and a backframe for a liquid crystal display. The backframe is configured by interlinked linkages such that the backframe can be freezed in a fully extended position in use, or be collapsible when not in use in a way that the overall dimension of the collapsible backframe is smaller than the fully extended backframe. The backframe can be switched from a fully extended position under normal use, or a collapsible position under a transportation or storage. The collapsible position occupies less volumetric weight as compared to the fully extended position so as to reduce the volumetric weight when the backframe is in transportation and storage. As a result, the performance of the transportation and storage can be therefore increased, while the cost is reduced.

FIELD OF THE INVENTION

The present invention relates to a technical field of displaying device,and more particularly to a liquid crystal display and a backframe forliquid crystal display.

DESCRIPTION OF PRIOR ART

A liquid crystal display generally includes a front frame, a liquidcrystal display panel, and a backlight module. The main configuration ofthe backlight module includes a backframe and a middle frame. Their mainfunction is to securely position as light source, a waveguide, and anoptical film, etc. Most important, they will carry and support theliquid crystal display panel. The backframe and the middle frame alsoserve as a backbone for the backlight module to strengthen theirrigidity. However, while the dimensions of the liquid crystal displayvary, the dimensions of both the backframe and the middle frame alsovary accordingly.

Currently, the backframe is integrally formed with a planarconfiguration. The overall dimension of the backframe is almostequivalent to the dimension of the liquid crystal display panel inlength and width. Accordingly, the backframe occupies a great deal ofvolumetric weight during both transportation and storage. Accordingly,the performance of the transportation and storage is quite low becauseof the volumetric weight each backframe takes. In general, the backframehas to put into a container for revolving. The larger the container, thehigher the cost for those backframe occupies larger volumetric weight.

SUMMARY OF THE INVENTION

An objective of the present invention is to provide a liquid crystaldisplay and a backframe for the liquid crystal display so as to resolvethe technical issues encountered by the prior arts. The overalldimension and volume of the backframe can he properly compacted so as toreduce its space during transportation and storage. The efficiency ofthe transportation and storage can be upgraded and the operating costcan he reduced.

In order to resolve the prior art issue, the present inventionintroduces a technical solution by providing a backframe for a liquidcrystal display which comprises as pair of primary struts arranged inparallel to each other. A pair of secondary bars are arranged inparallel to each other and pivotally interlinked to the pair of primarystruts by means of pinshafts at ends thereof in a way that the backframeconfigured by the interlinked primary struts and the secondary bars arecollapsible when not in use or fully extended in use such that a compactdimension of the back frame can he achieved when not in use. Wherein astopper is provided at an interlinked junction of the primary struts andthe secondary bars so as to freeze the fully extended position in use.And wherein further comprise a first auxiliary beam arranged in parallelto the secondary bars, and the first auxiliary beam is pivotallyinterlinked to the primary struts via is pinshafts.

In order to resolve the prior art issue, the present inventionintroduces a technical solution by providing a backframe for a liquidcrystal display, and the backframe is configured by interlinked linkagessuch that the back frame can be freezed in a fully extended position inuse, or be collapsible when not in use in a way that the overalldimension of collapsible backframe is smaller than the fully extendedbackframe.

Wherein the interlinked linkage is configured by a pair of primarystruts, and a pair of secondary bars pivotally interlinked withpinshafts at ends of the struts and the bars.

Wherein a stopper is provided at an interlinked junction of the primarystruts and the secondary bars so as to freeze the fully extendedposition of the primary struts and the secondary bars in use.

Wherein comprises a first auxiliary beam arranged in parallel to thesecondary bars, and the first auxiliary beam is pivotally interlinked tothe primary struts via pinshafts.

Wherein there is two auxiliary beams, and the backframe further includesa secondary auxiliary beam which is arranged in parallel to the primarystruts, and is pivotally interlinked to those two first auxiliary beams.

Wherein there are four assisting beams, and the first primary struts andthe secondary bars are pivotally interlinked by pinshafts.

Wherein the backframe includes a pair of first primary struts arrangedin parallel under normal use, and a pair of secondary bars arranged inparallel under normal use, and a pair of auxiliary beams arranged incross manner and being pivotally interlinked with each other, the pairof primary struts and the pair of secondary bars are pivotallyinterlinked at ends thereof.

Wherein there is four assisting beams, and the backframe furtherincludes a first assisting device which is pivotally interconnected withthose four assisting beams by means of pinshafts at their ends.

Wherein the backframe further includes four second assisting devicewhich is pivotally interconnected to the ends of the first primarystruts, the secondary bars, and the auxiliary beams by means ofpinshafts.

In order to resolve the prior art issue, the present inventionintroduces a technical solution by providing a liquid crystal displayconfigured with a liquid crystal display panel and a backframe. Thebackframe is configured by interlinked linkages such that the backframecan be freezed in a fully extended position in use, or be collapsiblewhen not in use in a way that the overall dimension of the collapsiblebackframe is smaller than the fully extended backframe.

The present invention can be concluded with the following advantages.The backframe made in accordance with the present invention isconfigured by a plurality of linkages pivotally interconnected together,and which makes the backframe be switched from a Bally extended positionunder normal use, or a collapsible position under a transportation orstorage. The collapsible position occupies less volumetric weight ascompared to the fully extended position so as to reduce the volumetricweight when the backframe is in transportation and storage. As a result,the performance of the transportation and storage can be thereforeincreased, while the cost is reduced.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a top view showing a backframe made in accordance with a firstembodiment of the present invention is freezed in a position undernormal use;

FIG. 2 is a top view showing the backframe in FIG. 1 and is switched toa collapsible position;

FIG. 3 is a top view showing a backframe made in accordance with asecond embodiment of the present invention is freezed in a positionunder normal use

FIG. 4 is a top view showing the backframe in FIG. 3 and is switched toa collapsible position;

FIG. 5 is a top view showing a backframe made in accordance with a thirdembodiment of the present invention is freezed in a position undernormal use;

FIG. 6 is a top view showing the backframe in FIG. 5 and is switched toas collapsible position;

FIG. 7 is a top view showing a backframe made in accordance with tofourth embodiment of the present invention is freezed in as positionunder normal use; and

FIG. 8 is a top view showing the backframe in FIG. 7 and is switched toa collapsible position.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to FIG. 1, a top view showing a backframe made in accordancewith a first embodiment of the present invention is freezed in aposition under normal use. In this preferred embodiment, the backframeincludes a pair of primary struts 110 and 130 a pair of secondary bars120 and 140. The backframe further includes a plurality of pinshafts 150and stoppers 160.

In this embodiment, the primary struts 110 and 130, and the secondary,bars 120 and 140 are elongated configuration and are pivotallyinterlinked to configure the backframe for supporting a liquid crystaldisplay. In use, the primary struts 110 and 130, and the secondary bars120 and 140 can be freezed so as to construct a rectangular backframe.Generally, the primary struts 110 and 130 are arranged in parallel toeach other, and the secondary bars 120 and 140 are also arranged inparallel to each other. Ends of the primary struts 110 and 130 arepivotally interlinked with ends of secondary bars 120 and 140 by meansof the pinshafts 150. Accordingly, every two adjacent primary strut 110(130) and secondary bars 120 (140) can be pivotally mo with each other.Accordingly, the backframe made therefrom can he switched between aposition of normal use, and a collapsible position when not in use orunder storage and transportation.

The joints between the primary struts 110 and 130, and the secondarybars 120 and 140 are provided with the stopper 160 such that therelative positions between the primary struts 110 and 130, and thesecondary bars 120 and 140 can be freezed under normal use. In thepresent invention, those four joints between the primary struts 110 and130, and the secondary bars 120 and 140 are provided with the stoppers160 so as to achieve an excellent result, However, the number of thestoppers 160 can be readily reduced in view of cost and reducingcomplexity, for example, only one or two stoppers 160 are applied. Inthe present embodiment, the pinshaft 150 and the stopper 160 can beembodied by screws, rivet, and bolt or any other suitable meansfacilitating the intended purposes.

Referring to FIG. 2 in which the backframe made according to the firstembodiment is switched to a collapsible position. Referring to FIGS. 1and 2, when the backframe is to switched to its collapsible position,the stopper 160 is removed so as to release the primary struts 110 and130, and the secondary bars 120 and 140 from its freezed position. As aresult, the primary struts 110 and 130, and the secondary bars 120 and140 can move with respect to each other centered on the pinshaft 150,and finally reach to the collapsible position as shown in FIG. 2. It canbe readily appreciated that when the backframe is switched to thecollapsible position, the volumetric weight is apparently reduced.

Referring to FIGS. 3 and 4 a top view showing a backframe made inaccordance with a second embodiment of the present invention is freezedin a position under normal Use, and a top view of the backframe ofsecond embodiment is switched to a collapsible position are respectivelyshown. In this preferred embodiment, the backframe includes a pair ofprimary struts 110 and 130, a pair of secondary bars 120 and 140. Thebackframe further includes a plurality of pinshafts 150 and stoppers160, which are similar to the first embodiment. In comparison, thedifference between the first and second embodiments resides in that apair of first auxiliary beams 210 and 220, and a second auxiliary beam230 are incorporated. The first auxiliary beams 210 and 220 are arrangedin parallel with respect to the secondary bars 120, 140, and the secondauxiliary bar 230 is arranged in parallel to the primary struts 110 and130.

In this embodiment, both ends of the first auxiliary beams 210 and 220are pivotally interlinked to the pair of primary struts 110 and 130 bymeans of the pinshaft 150. Both ends of the second auxiliary beam 230are pivotally interlinked to the pair of first auxiliary beams 210 and220 by means of the pinshaft 150. The joints between the first auxiliarybeams 210, 220 and the primary struts 110, 130, and the joints betweenthe second auxiliary beam 230 and first auxiliary beams 210, 220 are allprovided with stopper 160 so as to ensure a better position to freezethe relative movement therebetween. In other embodiment, the number offirst auxiliary beam and the second auxiliary beam can be alteredaccording to the actual requirements. For example, there could be onlyone first auxiliary beam and multiple second auxiliary beams, or viseversa. The number of stopper 160 can be also reduced according to actualrequirements.

The first auxiliary beams 210, 220 and the second auxiliary beam 230 aredisposed within a frame configured by the interlinked primary struts 110and 130, and the secondary bars 120 and 140. In addition, they arearranged in parallel with the primary struts 110 and 130 or thesecondary bars 120 and 140. Again, the overall configuration can heswitched between a fully extended position, or a collapsible position,such as what disclosed in FIGS. 3 and 4. Once the backframe is switchedto the collapsible position, the volumetric weight is apparentlyreduced.

Referring to FIGS. 5 and 6, a top view showing a backframe made inaccordance with a third embodiment of the present invention is freezedin a position under normal use, and a top view of the backframe ofsecond embodiment is switched to a collapsible position are respectivelyshown. In this preferred embodiment, the backframe includes a pair ofprimary struts 110 and 130, a pair of secondary bars 120 and 140. Incomparison, the difference between the first and third embodimentsresides in that four assisting beams 170 are incorporated. Ends of theprimary struts 110 and 130, and the secondary bars 120 and 140 areinterlinked with those four assisting beams 170 by means of the pinshaft150. By this arrangement, the backframe made in accordance with thethird embodiment can again switched between a fully extended positionand a collapsible position which tremendously reduce the volumetricweight of the backframe.

Referring to FIG. 7, a top view of a backframe made in accordance with afourth embodiment under normal use is shown. In this embodiment, thebackframe includes a pair of primary struts 311, 313, and a pair ofsecondary bars 312, 314, and totally four assisting beams 321, 322, 323,and 324. The backframe is further incorporated with a first auxiliarybeam 331, and four second auxiliary beams 322., and a plurality ofpinshaft 350 and stopper 360.

In use, the primary struts 311 and 313 are arranged in parallel to eachother, and the secondary bars 312 and 314 are arranged in parallel toeach other. These arrangement configures the backframe of the fourthembodiment. In this embodiment, In this embodiment, first ends of theprimary struts 311 and 312 and the secondary bars 312 and 314 areinterconnected with the second auxiliary beams 332 by means of thepinshaft 350. On the other hand, the other ends of the primary struts311 and 312 and the secondary bars 312 and 314 are interconnected withthe second auxiliary bean 322 by means of the stopper 360. The assistingbeams 321, and 324 are interconnected diagonally. An end of theassisting beams 321, 322, 323, and 324 is interconnected to the secondauxiliary beam 332 by means of the pinshaft 350, and the other ends areinterconnected to the first auxiliary beam 331 by means of anotherpinshaft 350.

Referring to FIG. 8, an illustrational view showing the backframe madein accordance with the fourth embodiment is under collapsible position.When the backframe is switched from its fully extended position to thecollapsible position. the stoppers 360 are removed from its position,and the assisting beams 321, 322, 323, and 324 are pivotally movedcentered on the first auxiliary beam 331. Accordingly, a width of thebackframe is reduced and the intended purpose of reducing the volumetricweight is achieved. Meanwhile, the prima struts 311, 313 and thesecondary bars 312, 314 are also pivotally moved centered on thepinshaft 350 in a way the ends in which the stoppers 360 rooted, areresolving toward the first auxiliary beam 331. In comparison, thedifference between the fourth and other above described embodiments isthat the assisting beams 321, 322, 323, and 324 are pivotally movedcentered on the first auxiliary beam 331 so as to realize the fullyextended position as shown in FIG. 7, and a collapsible position shownin FIG. 8 which tremendously reduce the volumetric weight of thebackframe.

The fourth embodiment can be altered or modified by removing the secondauxiliary beam 332. Then, ends of the primary struts 311, 313, and thesecondary bars 312, 314 are pivotally interconnected with the fourassisting beams 321, 322, 323, and 324 by pinshaft 350. Oralternatively, the assisting beams 321 and 323 can be replaced by othersuitable parts, and the assisting beams 322 and 324 can he replaced withother suitable parts. The pinshaft 150 can he used to interconnect them.

In other embodiment, any skilled in the art can readily modify or changeany elements within the backframe with paying additional and laboriousefforts. With simple and easy replacement of certain parts, thebackframe made therefrom can be readily switched between the fullyextended position, and the collapsible position. Accordingly, theimplementations of the present invention will be not limited to whatdisclosed in FIG. 1 through FIG. 8.

The present invention further discloses a liquid crystal display monitorwhich incorporates with any one of the backframes disclosed above.

The present invention can be concluded with the following advantages.The backframe made in accordance with the present invention isconfigured by a plurality of linkages pivotally interconnected together,and which makes the backframe be switched from a fully extended positionunder normal use, or a collapsible position under a transportation orstorage. The collapsible position occupies less volumetric weight ascompared to the fully extended position so as to reduce the volumetricweight when the backframe is in transportation and storage. As a result,the performance of the transportation and storage can be thereforeincreased, while the cost is reduced.

Embodiments of the present invention have been described, but notintending to impose any unduly constraint to the appended claims. Anymodification of equivalent structure or equivalent process madeaccording to the disclosure and drawings of the present invention, orany application thereof, directly or indirectly, to other related fieldsof technique, is considered encompassed in the scope of protectiondefined by the claims of the present invention.

1. A backframe for a liquid crystal display, comprising a pair ofprimary struts arranged in parallel to each other; a pair of secondarybars arranged in parallel to each other and pivotally interlinked to thepair of primary struts by means of pinshafts at ends thereof in a waythat the backframe configured by the interlinked primary struts and thesecondary bars are collapsible when not in use or fully extended in usesuch that a compact dimension of the backframe can be achieved when notin use; wherein a stopper is provided at an interlinked junction of theprimary struts and the secondary bars so as to freeze the filly extendedposition in use; and wherein further comprises a first auxiliary beamarranged in parallel to the secondary bars, and the first auxiliary beamis pivotally interlinked to the primary struts via pinshafts.
 2. Abackframe for as liquid crystal display, characterized in that thebackframe is configured by interlinked linkages such that the backframecan be freezed in a full extended position in use, or be collapsiblewhen not in use in a way that the overall dimension of the collapsiblebackframe is smaller than the fully extended backframe.
 3. The backframeas recited in claim 2, wherein the interlinked linkage is configured bya pair of primary struts, and a pair of secondary bars pivotallyinterlinked with pinshafts at ends of the struts and the bars.
 4. Thebackframe as recited in claim 3, wherein a stopper is provided at aninterlinked junction of the primary struts and the secondary bars so asto freeze the fully extended position of the primary struts and thesecondary bars in use.
 5. The backframe as recited in claim 3, whereincomprises a first auxiliary beam arranged in parallel to the secondarybars, and the first auxiliary beam is pivotally interlinked to theprimary struts via pinshafts.
 6. The backframe as recited in claim 5,wherein there is two auxiliary beams, and the backframe further includesa secondary auxiliary beam which is arranged in parallel to the primarystruts, and pivotally interlinked to those two first auxiliary beams. 7.The backframe as recited in claim 3, wherein there are four assistingbeams, and the first primary struts and the secondary bars are pivotallyinterlinked by pinshafts.
 8. The backframe as recited in claim 2,wherein the backframe includes a pair of first primary struts arrangedin parallel under normal use, and a pair of secondary bars arranged inparallel under normal use, and a pair of auxiliary beams arranged incross manner and being pivotally interlinked with each other, the pairof primary struts and the pair of secondary bars are pivotallyinterlinked at ends thereof.
 9. The backframe as recited in claim 2,wherein there is four assisting beams, and the backframe furtherincludes a first assisting device which is pivotally interconnected withthose four assisting beams by means of pinshafts at their ends.
 10. Thebackframe as recited in claim 2, wherein the backframe further includesfour second assisting device which is pivotally interconnected to theends of the first primary struts, the secondary bars, and the auxiliarybeams by means of pinshafts.
 11. A liquid crystal display configuredwith a liquid crystal display panel and a backframe, the backframe isconfigured by interlinked linkages such that the backframe can befreezed in a fully extended position in use, or be collapsible when notin use in a way that the overall dimension of the collapsible backframeis smaller than the fully extended backframe.
 12. The liquid crystaldisplay as recited in claim 11, wherein the interlinked linkage isconfigured by a pair of primary struts, and a pair of secondary barspivotally interlinked with pinshafts at ends of the struts and the bars.13. The liquid crystal display as recited in claim 12, wherein a stopperis provided at an interlinked junction of the primary struts and thesecondary bars so as to freeze the fully extended position of theprimary struts and the secondary bars in use.
 14. The liquid crystaldisplay as recited in claim 12, wherein comprises a first auxiliary beamarranged in parallel to the secondary bars, and the first auxiliary beamis pivotally interlinked to the primary struts via pinshafts.
 15. Theliquid crystal display as recited in claim 14, wherein there are twoauxiliary beams, and the backframe further includes a secondaryauxiliary beam which is arranged in parallel to the primary struts, andis pivotally interlinked to those two first auxiliary beams.
 16. Theliquid crystal display as recited in claim 12, wherein there are fourassisting beams, and the first primary struts and the secondary bars arepivotally interlinked by pinshafts.
 17. The liquid crystal display asrecited in claim 11 wherein the backframe includes a pair of firstprimary struts arranged in parallel under normal use, and a pair ofsecondary bars arranged in parallel under normal use, and a pair ofauxiliary beams arranged in cross manner and being pivotally interlinkedwith each other, the pair of primary struts and the pair of secondarybars are pivotally interlinked at ends thereof.
 18. The liquid crystaldisplay as recited in claim 11, wherein the backframe further includesfour second assisting device which is pivotally interconnected to theends of the first primary struts, the secondary bars, and the auxiliarybeams by means of pinshafts.
 19. The liquid crystal display as recitedin claim 18, wherein the backframe further includes four secondassisting device which is pivotally interconnected to the ends of thefirst primary struts, the secondary bars, and the auxiliary beams bymeans of pinshafts.